The sensor continuously sends out infrared light and measures how much of that light is reflected. When a reflective object is within its set detection range, it returns a low signal. The Arduino ...

An Arduino-based automation project that uses a Light Dependent Resistor (LDR) to control an AC lighting circuit based on ambient light conditions. The system automatically switches the load ON during ...

This project uses an ESP32, LDR sensor, and GPS module to automatically detect streetlight failures. When continuous darkness is detected, the system verifies GPS coordinates and sends an email alert ...